Influence of dietary mannan-oligosaccharides supplementation on hematological characteristics, blood biochemical parameters, immune response and histological state of laying hens

Youssef, Islam M.; Khalil, Hassan A.; Jaber, Fatima A.; Alhazzaa, Rasha A.; Alkholy, Sarah O.; Almehmadi, Awatif M.; Alhassani, Walaa E.; Al-Shehri, Mohammed; Hassan, Hesham; Hassan, Magdy S.; Abd El Halim, Haiam S.; El-Hack, Mohamed E. Abd; Youssef, Khaled M.; Abo-Samra, Maher A.

doi:10.1016/j.psj.2023.103071

Cited by 10 publications

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“…The results demonstrated that supplementing 1 g per kg of YM improved the primary antibody response, immunoglobulin M (IgM), against SRBCs. This finding supports previous studies where chicken antibody responses were strengthened by dietary supplementation of a preparation that contained yeast cell wall carbohydrates [32,33]. In the current study, the more robust antibody responses observed could be the results of immune-modulating effects associated with yeast cell wall-derived preparation.…”

Section: Discussionsupporting

confidence: 92%

“…In the current study, a similar immunization program to that used by Singh et al [ 36 ] was applied, where broiler chickens were only subjected to one SRBC immunization. However, in the majority of studies where SRBCs were used to evaluate an immune response in chickens, two immunizations were conducted to evaluate the primary (IgM) and secondary (IgY) antibody responses [ 16 , 17 , 33 , 35 , 37 ]. The secondary antibody response is critical for animals to maintain long-term immunity and health as it can rapidly and effectively eliminate the previously exposed antigens [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

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Feeding a Novel Mannan-Rich Yeast Carbohydrate Product Improves Production Performance and Humoral Immunity of Broiler Chickens

Wang,

Archile,

Patterson

2024

Animals

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The current study examined the benefits of a novel mannan-rich yeast carbohydrate product (YM) on broiler chicken growth performance and immune response against sheep red blood cells (SRBCs). A total of 144 newly hatched male Cornish cross broiler chicks were randomly assigned to four treatments with 12 cages per treatment and three birds per cage. The treatments were (1) control, basal diet; (2) YCW, basal diet + 1 g/kg yeast cell wall; (3) YM1, basal diet + 0.5 g/kg of a novel yeast mannan-rich product (YM); and (4) YM2, basal diet + 1 g/kg YM. Growth performance was measured at 14, 28, and 35 days of age (d). At 26 and 27 d, nine birds per treatment were immunized intravenously with SRBCs, and antibody responses against SRBCs were analyzed through a hemagglutination assay 7 days post-inoculation. Supplementing YM tended to improve broiler chicken weight gain from 29 to 35 d (p = 0.053). An improvement in the feed conversion ratio (FCR) was observed in the birds fed YM diets during 29–35 d and over the entire experimental period (0–35 d; p < 0.05). Furthermore, birds fed YM2 diets had more robust antibody responses against SRBCs than the control birds (p = 0.033). In conclusion, dietary supplementation of YM improved broiler chicken growth performance and antibody response against SRBCs.

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Section: Discussionsupporting

confidence: 92%